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Mixing and matching materials provides automakers with a lighter future / Edward Bernardon in JEC COMPOSITES MAGAZINE, N° 91 (08-09/2014)
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Titre : Mixing and matching materials provides automakers with a lighter future Type de document : texte imprimé Auteurs : Edward Bernardon, Auteur Année de publication : 2014 Article en page(s) : p. 32-33 Langues : Anglais (eng) Catégories : Assemblages multimatériaux
Automobiles -- Conception et construction
Automobiles -- Matériaux
Composites à fibres
Matériaux -- Allègement
Matières plastiques dans les automobilesIndex. décimale : 668.4 Plastiques, vinyles Résumé : To meet stricter regulations aimed at significantly reducing emissions and improving fuel efficiency, automotive companies must drastically rethink the way vehicles are engineered and manufactured. Weight saving has been identified by the industry as a critical way to comply with these government regulations. Reducing vehicle weight introduces challenges that affect all parts of the vehicle and engineering processes, including the software applications used from conceptual design through final manufacturing. These challenges will require automakers to not only redesign vehicles and consider the use of alternative materials, but also to rethink their engineering processes, manufacturing methods and software technology. Note de contenu : - Unlocking the full potential of composites
- Handling a mix of materialsPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=23012
in JEC COMPOSITES MAGAZINE > N° 91 (08-09/2014) . - p. 32-33[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 16509 - Périodique Bibliothèque principale Documentaires Disponible Multi-material mix gets a carbon fiber twist / Martin Reimers in KUNSTSTOFFE INTERNATIONAL, Vol. 108, N° 3 (03/2018)
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Titre : Multi-material mix gets a carbon fiber twist : Vision becomes reality for mass production of torsionally-rigid CFRP components Type de document : texte imprimé Auteurs : Martin Reimers, Auteur ; Felix Dielbold, Auteur ; Anna Pointner Année de publication : 2018 Article en page(s) : p. 12-15 Langues : Anglais (eng) Catégories : Assemblages multimatériaux
Automobiles -- Carrosseries
Automobiles -- Matériaux
Composites à fibres de carbone
Epoxydes
Matériaux -- Allègement
Moulage par transfert de résine sous videIndex. décimale : 668.4 Plastiques, vinyles Résumé : Steel, aluminum, magnesium and carbon-fiber-reinforced plastics are combined in the new Audi A8 for a lighter weight, higher performing car body. This multi-material mix solution combines the best structural properties at a lower weight. Contributions from Voith and Dow helped enable mass production of a carbon fiber rear wall. Note de contenu : - Enabling CFRP technology
- Component construction
- Manufacturing and assembly considerations
- Collaboration is essential
- Fig 1. Together with their partners Audi developed mass production and assembly of the structural CFRP near wall. It weighs 50 % less than its predecessor and is mounted to the vehicle body with a fast-cure adhesive from Dow
- Fig. 2. View into the Voith production facility at Garching, close to Munich. There, the Audi A8 CFRP near wall structure is processed in a fully automated manufacturing process utilizing the patiented direct fiber placement technology by the Voith roving applicator
- Fig. 3. An isotropic base structure is prepared with a six-layer carbon fiber buildup that is then reinforced up to 19 layers indicated by the red and blue load paths
- Fig. 4. Process benefits of Voraforce 5300 epoxy system. It is well suited for either RTM or wet-compression molding. Ultra-fast curing times coupled with an efficient internal mold release agent, accelerate the mass production (the properties shown are typical but not to be construed as specifications
- Fig. 5. CFRP rear wall in the Ultra-RTM process. View of the lower mold surface, mold with dry preform incorporating the reinforced load paths, cured epoxy injected part prior to demoldingEn ligne : https://drive.google.com/file/d/1-wtVTueZ2cKqZqlUy1dHQ0A-OlIOS5bi/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30245
in KUNSTSTOFFE INTERNATIONAL > Vol. 108, N° 3 (03/2018) . - p. 12-15[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19706 - Périodique Bibliothèque principale Documentaires Disponible Multimaterial assembly - issues, problems and solutions / Richard Tomasi in JEC COMPOSITES MAGAZINE, N° 107 (08-09/2016)
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Titre : Multimaterial assembly - issues, problems and solutions Type de document : texte imprimé Auteurs : Richard Tomasi, Auteur ; Pierre Chalandon, Auteur ; Cyrille Dalla-Zuanna, Auteur Année de publication : 2016 Article en page(s) : p. 28-31 Langues : Anglais (eng) Catégories : Assemblages (technologie)
Assemblages multimatériauxTags : 'Assemblages multimatériaux' Thermostampage 'Matrix SWOT' 'Procédé WARM-bond' Induction Index. décimale : 668.4 Plastiques, vinyles Résumé : Multi-material assemblies, namely metal structures associated with composite structures, are booming. Indeed, full composite structures for full metal replacement are not always optimal due to thermal mechanical stresses or cost limitations. As a result, current and upcoming developments are moving towards an optimized structure using "the right material in the right place". Note de contenu : - Bonding technology
- Mechanical assembly techniques such as screwing/riveting
- Innovative multi-material assemblies
- WARM-bond hot bonding assembly
- CMT pin and thermostamping assembly
- FIGURES : 1. Assembly technologies according to the demountability principle - 2. Wedge test for several surface preparations - 3. Principle of the WARM-bond process using induction - 4. Examples of pin thermostamping - 5. Hybrid technology comparison
- TABLES : 1. SWOT matrix for bonded assemblies - 2. SWOT matrix for mechanical assemblies - SWOT matrix for the WARM-Bond process using induction - 4. Single lap shear results on joints - 5. SWOT matrix for the CMT pin-thermostamping processPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27772
in JEC COMPOSITES MAGAZINE > N° 107 (08-09/2016) . - p. 28-31[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18289 - Périodique Bibliothèque principale Documentaires Disponible Plastic and metal - an inseparable team / Erwin Bürkle in KUNSTSTOFFE INTERNATIONAL, Vol. 107, N° 12 (12/2017)
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Titre : Plastic and metal - an inseparable team : Innovative injection molding technologies for hybrid lightweight applications Type de document : texte imprimé Auteurs : Erwin Bürkle, Auteur ; Maik Gude, Auteur ; Michael Krahl, Auteur ; Michael Stegelmann, Auteur Année de publication : 2017 Article en page(s) : p. 15-19 Langues : Anglais (eng) Catégories : Assemblages collés
Assemblages multimatériaux
Composites -- Moulage par injection
Matériaux -- Allègement
Matériaux hybridesIndex. décimale : 668.4 Plastiques, vinyles Résumé : The imminent paradigm shift in mobility makes it essential that the German automotive industry prepares itself to undergo a transformation, both now and in the future, the like of which has not been seen before. Resource-efficient lightweight system engineering in a multi-material design is a key differentiating feature here. In this connection, novel materials, highly automated, digitized manufacturing processes as well as functional integration for intelligent component structures and vehicle systems will form the basis for creating springboard innovations that will dominate the competition. Note de contenu : - Plastic + Metal= Lightweight design ?
- Hybrid structures require special plant technology
- Smart mold and automation solutions
- Bonding polymer and metal properly
- FIGURES : 1. Sheet metal, fiber composite structures and LFT ribs are combined in a single process to yield complex three-dimensional hybrid parts - 2. System complex incl. bolt-on unit from KraussMaffei for manufacturing the battery tunnel of the Leika floorpan - 3. Section of the FDC unit with fiber cutting and feed at the front part of the injection unit - 4. The individual components in CAD and the finished FuPro component - 5. Microtexture on the metal surface (shown in fals colors) to improve the adhesion of a metal-fiber composite - 6. Application of a plasma polymer layer to sheet metal by the "Plasma-SealTight" nozzle - 7. ILK hybrid test specimens for analyzing the strength of the connections between different materials for different types of loadEn ligne : https://drive.google.com/file/d/1Q60DlKrR1UnVNiJ71gJRL1jg-KHvPqJ-/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29674
in KUNSTSTOFFE INTERNATIONAL > Vol. 107, N° 12 (12/2017) . - p. 15-19[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19448 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : Plastic forms metal : One-step hybrid foaming process for the production of hybrid structures for vehicle bodies and chassis Type de document : texte imprimé Auteurs : Xiangfan Fang, Auteur ; Daniel Heidrich, Auteur ; Tobias Kloska, Auteur ; Björn Sonnenstädt, Auteur ; Norbert Stötzner, Auteur ; Andreas Sprick, Auteur ; Rüdiger Heinritz, Auteur ; Maximilian Gruhn, Auteur Année de publication : 2019 Article en page(s) : p. 50-53 Langues : Anglais (eng) Catégories : Assemblages multimatériaux
Automobiles -- Pièces
Essais dynamiques
Flexion trois points
Matières plastiques -- Moulage par compression
Matières plastiques dans les automobiles
Polyamide 6Index. décimale : 668.4 Plastiques, vinyles Résumé : In large-scale automotive production, all-metal components are still mainly used instead of high-performance plastic/metal hybrids for reasons of cost. With a newly developed production process combining metal sheet forming and compression molding, hybrid components can now be manufactured more quickly and economically. Note de contenu : - Efficient production of hybrid components
- Tool technology and sealing concept
- Design of hybrid components
- Production of the longitudinal and transverse control arms
- Figure : The longitudinal control arm or a rear suspension system made from a hybrid comprising long fiber-reinforced PA6 and steel sheet is formed an dbonded in one step. The two materials combine lightweight design with fail-safe crash behavior
- Fig. 1 : The subsequent process oprations shown schematically in a sectio nthrough a hybrid compression mold
- Fig. 2 : To prevent escape of thermoplastic melt in hybrid compression molding, various sealing concepts were developed for the mold. Sealing profiles with open ends, such as for side or cross members, posed a particular challenge
- Fig. 3 : Comparison and results of different component variants based on cross-member geometry in the three-point bending test. Weighing 10 % less than conventional steel strike plate structures (black), the steel/LFT (orange) structure can withstand twice the load
- Fig. 4 : Thanks to the component-optimized design of the suspension link, a thinner metal sheet could be used in combination with the plastic, so achieving an overall weight saving of around 20% compared with the steel reference component
- Fig. 5 : View of the D-LFT machine that precedes hybrid forming and view into the hybrid mold at Weber Fibertech. One-step production of the steel/LFT longitudinal control arm follows in a hydraulic upper ram press
- Fig. 6 : The finished hybrid control arm components before (transverse control arm) and after (longitudinal control arm) the trimming operationEn ligne : https://drive.google.com/file/d/1nIlWXQvIbcnKwQwf02yIe0azsh6MYAXA/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31831
in KUNSTSTOFFE INTERNATIONAL > Vol. 109, N° 1-2 (01-02/2019) . - p. 50-53[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20616 - Périodique Bibliothèque principale Documentaires Disponible Process chain for the production of hybrid medical products / Moritz Mascher in KUNSTSTOFFE INTERNATIONAL, Vol. 112, N° 3 (2022)
PermalinkPunching, molding, assembling in a single cell / Ralf Högel in KUNSTSTOFFE INTERNATIONAL, Vol. 108, N° 12 (12/2018)
PermalinkPutting hybrid components to the test / René Krämer in KUNSTSTOFFE INTERNATIONAL, Vol. 109, N° 9 (09/2019)
PermalinkReduced settling behavior in multi material components / Thomas Vietor in KUNSTSTOFFE INTERNATIONAL, Vol. 110, N° 4 (2020)
PermalinkPermalinkReliable adhesion on snow / Claude Hosotte in ADHESION - ADHESIVES + SEALANTS, Vol. 19, N° 4/2022 (2022)
PermalinkPermalinkStack drilling with diamond tool materials / Matthew Goulbourn-Lay in JEC COMPOSITES MAGAZINE, N° 112 (04-05/2017)
PermalinkPermalinkThe challenges of multimaterial assembly / Pierre Chalandon in JEC COMPOSITES MAGAZINE, N° 93 (12/2014)
PermalinkThermal direct joining allows plastic and metal to be fused together / Annett Klotzbach in PLASTICS INSIGHTS, Vol. 113, N° 8 (2023)
PermalinkTurning out 3-component parts under torque / Sabine Kob in KUNSTSTOFFE INTERNATIONAL, Vol. 112, N° 9 (2022)
PermalinkPermalink"We have to think more and more about multi-material systems" / Michael Effing in JEC COMPOSITES MAGAZINE, N° 123 (08-09/2018)
PermalinkWhat is the most suitable material combination / Christian Hopmann in KUNSTSTOFFE INTERNATIONAL, Vol. 112, N° 2 (2022)
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